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- COW snapshot (cp --reflink=always) of package volumes before install/update; restore on failure, remove on success - Automatic ext4→btrfs conversion via btrfs-convert during disk attach with e2fsck pre-check and post-conversion defrag - Probe package-data filesystem during setup.disk.list (on both disk and partition level) so the UI can warn about ext4 conversion - Setup wizard preserve-overwrite dialog shows ext4 warning with backup acknowledgment checkbox before allowing preserve
StartOS Backend
- Requirements:
- Install Rust
- Recommended: rust-analyzer
- Docker
Structure
startos: This contains the core library for StartOS that supports buildingstartbox.helpers: This contains utility functions used across bothstartosandjs-enginemodels: This contains types that are shared acrossstartos,js-engine, andhelpers
Artifacts
The StartOS backend is packed into a single binary startbox that is symlinked under
several different names for different behavior:
startd: This is the main daemon of StartOSstart-cli: This is a CLI tool that will allow you to issue commands tostartdand control it similarly to the UIstart-sdk: This is a CLI tool that aids in building and packaging services you wish to deploy to StartOS
Documentation
- ARCHITECTURE.md — Backend architecture, modules, and patterns
- CONTRIBUTING.md — How to contribute to core